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Speakers & Volume Controls
INSTALLATION INSTRUCTIONS
RAT1
REMOTE AUTO TRANSFORMER
The RAT1 is an infrared remote controlled stereo
RAT1
speaker volume control with impedance matching
REMOTE AUTO TRANSFORMER
capability. It allows individual volume control of from
one to 16 pair of stereo speakers from one stereo
power amplifier, using one RAT1 for each stereo
speaker pair. It is controlled with any Xantech IR
SPEAKER
AMPLIFIER
OUTPUT
Receiver or keypad or with Xantech MIRV1 motorized INPUT
STAT
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RC68 PROGRAMMER / REMOTE CONTROL The RC68+ (and the RC68) programmer (available separately) contains all the commands necessary to operate the RAT1. • You will need it to program universal learning devices such as the Xantech URC-1 learning remote, the Xantech Smart Pads, the 590 Programmable Controller, the 710 Fone Link, etc., with commands that operate the RAT1. • NOTE: The RC68+ codes operate several other Xantech models as well, such as the RS41AV, CC12, ZPR68, MIRV1, etc. Therefore, only
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Speakers & Volume Controls SETTING THE IMPEDANCE MATCHING JUMPERS The impedance matching jumpers are located under a clear mylar cover on the right side of the top of the unit. Remove the two screws for access. The proper placement of these jumpers depends on the number of RAT1's and speakers used in the total installation. To set them for the best impedance matching condition, refer to the following charts and procedures: WHEN USING 8 OHM SPEAKERS Number of Speaker Pairs Used Min. Amp. Imped
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Procedure for Speakers Other Than 4 or 8 Ohms In this case, treat all speakers that are rated between 4 and 7 Ohms as 4 Ohm speakers, and use the charts accordingly. Similiarly, all speakers that are rated 8 Ohms or higher, treat as 8 Ohms speakers. Again, all speakers used in the system should be the same impedance (i.e. all 6 Ohms, all 7 Ohms, etc.). Speaker Wire Recommendations As a rule of thumb, use good quality 18 gauge speaker wire for runs up to 30', 16 gauge up to 70', and 14 gauge u
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Speakers & Volume Controls 6. Multiply 1.14 by 8 (for the S8 setting) = 9.12 Ohms. 7. Next, calculate the overall paralleled impedance Z . Since three paralleled groups are used in this O example, the calculation is as follows: Z = 1 ÷ [(1÷16) + (1÷16) + (1÷9.12)] = 4.26 Ohms. O Since this yields more than 4 Ohms, the S8 setting for the 4 Ohm group, the S8 setting for the 6 Ohm group and the S8 setting for the 8 Ohm group are the correct ones to use. Impedance Setting Tips 1. You may use the ab
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If you wish to carry remotes that have the same codes from room-to-room, use a Dedicated IR Bus System as shown in Fig. 4. 5. A 490-30 "Micro Link" IR Receiver plugs into the 789-44 for local control of the source equipment (i.e. equipment behind closed doors, etc.). 6. A "STATUS" system is included. This permits the power "ON/OFF" status of the A/V receiver or amplifier system to be visible in each of the remote rooms. It also permits the power management capability of the Smart Pad to operat
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Speakers & Volume Controls EMITTERS 789-44 CONNECTING BLOCK ® IR 12VDC RCVR MAIN ROOM, EQUIPMENT AREA, ETC. 786-00 "STATUS" power supply. Plug into a SWITCHED 490-30 CONTROLLED COMPONENTS "Micro Link" AC Outlet on A/V Receiver (see text). IR Receiver Satellite Receiver (i.e. cabinet mounted for CAUTION: Stereo receivers usually have two sets of speaker terminals, "A" and "B". Be sure all speakers connected to both "A" and "B" are taken into IR control in main room) consideration when paralle
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INSTALLATION – DEDICATED IR BUS SYSTEM Fig. 4 illustrates an installation where each remote room has a Dedicated IR Bus going to the RAT1 that controls it. The IR bus is not connected in common as it is in Fig. 3. This eliminates the need for dedicated remotes, allowing you to carry the same remote(s) from room-to-room. It is configured as follows: 1. Again, for simplicity, only three RAT1's are shown. Larger systems may be configured, using the same connection techniques (up to a max. of 16
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Speakers & Volume Controls EMITTERS 789-44 CONNECTING BLOCK ® IR 12VDC RCVR MAIN ROOM, EQUIPMENT AREA, ETC. 490-30 CONTROLLED 786-00 "STATUS" power supply. Plug into a SWITCHED "Micro Link" COMPONENTS AC Outlet on A/V Receiver (see text). IR Receiver (i.e. cabinet mounted Satellite Receiver CAUTION: Stereo receivers usually have two sets of speaker terminals, "A" 793-10 for IR control and "B". Be sure all speakers connected to both "A" and "B" are taken into Serial Combiner in main room) con
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EMITTERS 789-44 CONNECTING BLOCK ® IR 12VDC RCVR INSTALLATION (cont'd) 793-10 793-10 CONTROLLED Serial Combiner Serial Combiner COMPONENTS Satellite Receiver 283M Blink-IR™ CD Changer 789-44 Connecting Block 283M Blink-IR™ Mouse Emitter +12 VDC GND – STATUS IR IN + To additional "Daisy-Chain" Emitters if connection. Use Use Mini-Plug- White To IR IN To IR IN 3.5/3.5mm Mini- needed to-Stripped Stripped and GND and GND Plug cable, end cables, Side (+) on each RAT1 Pt. # 6017400 on each RAT1 Pt. #
